Lexar 512MB High Speed 40x CompactFlash Card. Internal memory: 512 MB, Flash card type: CompactFlash (CF), Write speed: 6 MB/s. Width: 42.80 mm, Depth: 36.4 mm, Height: 3.30 mm. Input voltage: 3.3 / 5 V. Operating temperature range (T-T): 0 - 60 °C, Storage temperature range (T-T): -20 - 80 °C, Operating relative humidity range: 5 - 96 %. Certification: FCC part 15, VCCI, CE